Device for cleaning water cocks



Sept. 8, 1925. 1,553,034

H. J. DONNELLY DEVICE FOR CLEANING WATER COCKS Filed Dec. 16. 1924 &

Lit

Patented Sept. 8, 1925.

our-ran STATES HENRY DO NELLY, or SOUTH nnLLmeHArr, WASHINGTON.

DEVICE FOR CLEANING WATER COCKS.

Application filed December 1 6, .1924. Serial No. 7 56,2 80

To all whom it may concern:

' Be it known that I, HENRY J. DONNELLY, a citizen of the United States, residing at South Bellingham, in-the county of KVhatcoin and State of Washington, have invented certain new and useful Improvements in Devices for Cleaning Water Cocks, of which the followingis a specification.

This invention is a device for removing incrustation from water valves. is customary at the junction of a water main with a service pipe to provide a cut-ofi valve which is normally open but which may be easily closettwhen repairs to the service pipe are necessary or, for any other reason, it is desired to cut the flow of water into the service pipe. Corrosion occurs in these cut-off valves, especially at the points where they are titted into the main, and the accumulated incrustation which results from the corrosion eventually reduces the How in the service pipe to such an extent that it is negligible. It is the object of my invention to provide a very simple tool by the use of which this deposit or accumulationmay be easily removed without requiring thevalvc to be separated from the main and without reducing the pressure in the main while, at the am t me. w thel t e p i g the op to wetting, as frequently occurs by the methods now in use. The invention is illustrated in the accompanying drawing and consists in certain novel features which will be particularly pointed out in the appended claim. I

In the drawing:

Figure 1 is an elevation of my tool in operative position;

Fig. 2 is a longitudinal section of a valve having the tool applied thereto, the barrel or guiding body of the tool being also shown in section;

Fig. 3 is an enlarged detail view, partly in section, showing one manner of mounting the head or striker block upon the plunger or push rod;

Fig. 4 is a detail perspective view showing another manner of mounting the head upon the rod, and

Fig. 5 is a detail perspective view showing a different form of head from that shown in the other figures.

In the drawing, the reference numeral 1 indicates a portion of a water main, in the wall of which is fitted a cut-01f valve 2 of ordinary turning plug type. This valve, as clearly shownfis threaded at one end mto themam'and at its opposite end 1s externally threaded so that it may be connected with the's'ervice pipe. The bore of the valve three. ded bore of the valve casing. Between encla this barrel is provided with'an annular rib 5 which is preferably formed with flat faces so that it may be easily engaged by a wrench or ot her tiu'ning tool if necessary. Adjacent each end ofthe barrel is a or aiinu'lartlange 6, and immediately adjacent neonatface of each 'fiaiige'or disk is. a short smooth surface '7 to a ccommodatea gas ltetwhich isplziced aroundthebarrel and against the annular flange or disli so'tha-t, when the barrel is eng jd in'tho end, of the valve casing, a leak-pi .t' joint will be-produccdl Sli'dably fitted through the bore of the valveis a push rod Q'which is equipped ateach ofits 'e as with a head or stril 'er disk which is adapted to engage in'aii'd work through the port of the valve'turningplug as well as through the bore of the valve casing. In Fig. 2, thehead is shown engaged in the port of the valve turning-plug.

The head or striker may be secured to the push rod in any convenient or preferred manner. In Fig. 8, I have shown the end of the rod reduced, as at 11, and the head 10, in this arrangement, has a smooth bore, the extremity of the rod being upset against the outer face of the head, as indicated at 12, after the head has been fitted over the reduced portion of the rod and against the annular shoulder 13 provided at the base of said reduced portion. In Fig. 4c, the end of the rod is shown as provided with threads 14 and thebore of the head is threaded, as at 15, so that it may be easily fitted to and secured upon the end of the rod. In Figs. 1 to 4, the head is circular in form so that it is adapted to operate in a turning plug having a circular port, while in Fig. 5 the head 16 is elongated so that it may be oblong or ellipsoidal to engage in and pass through an elliptical port.

The invention contemplates the provision of a plurality of barrels and push rods, each push rod carrying a head at each end thereof and the heads being of different diameters. The heads may also be interchangeable and the diameters and outlines of the heads will be such that the workman may at once dispose the proper head in position to engage the port of the valve which is to be cleaned. In use, the valve is first closed by rotating the turning plug in the usual manner. The service pipe is then disconnected from the valve casing and the barrel 3 engaged in the valve casing so that leakage will be prevented by the gasket 8 and a head of the proper size and form to fit closely within the port of the turning plug will be presented to the plug. The valve is then opened and the push rod 9 forced downwardly through the valve turning-plug and the end of the valve casing thereby breaking off the accumulated deposit and scraping the same from the bore of the valve casing so that the valve will be cleaned and the entire capacity of its bore will be again available for the passage of water. The push rod is then lifted so that the working head 10 thereon will be withdrawn from the port of the turning plug. The valve is then closed, the barrel 3 rotated so as to be removed from the valve casing, the service pipe then again connected to the valve, and the valve opened so that the service pipe will then be in condition for use.

It will be understood that each tool is adapted Without any change to be applied to a valve having either of two standard dimensions. For example, the push rod may be equipped at one end with a head having a diameter of one-half inch and at the opposite end with a head having a diameter of five-eighths of an inch. Accordingly, the operator will apply the barrel to the valve so that one or the other head will be presented thereto accordingly as the port of the turning plug and the bore of the valve casing has a diameter of one-half of fiveeighths of an inch. The device is exceedingly simple and may be easily applied to or removed from any valve which is to be cleaned. The deposit in the valve may be very quickly removed by a few blows ad ministered thereupon through reciprocation of the push rod and no reduction of pres sure in the water main will be required to permit the device to be operated.

Having thus described the invention, I claim:

A tool for cleaning turning plug valves comprising a barrel having a smooth straight bore extending longitudinally therethrough, the barrel being constructed at its ends to engage within the delivery end of a valve casing, an annular flange on the barrel adjacent each end of the same, gaskets carried by the barrel and seated against the respective flanges to engage the end of the valve casing and prevent leakage, a rigid rod slidably and snugly fitted through the bore of the barrel, and a head carried by each end of the rod, the head being of greater diameter than the rod whereby to prevent withdrawal of the rod from the barrel and of a form to fit closely in the port through the turning plug of the valve.

In testimony whereof I aflix my signature.

HENRY J. DONNELLY. [L.s.] 

